The new method will be in demand in the Internet of Things, industrial automation, and robotics
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Photo source: metamorworks / iStock
Researchers at the Centre for Artificial Intelligence at St. Petersburg State University (SPbU), a partner of TV BRICS, have proposed a new synchronisation algorithm that will enable electronic devices to coordinate their operation without a central time source and prevent the logical clock from rolling back. This development could enhance the reliability of sensor networks, industrial systems, robotic systems and space technology. This was reported on the website of the university.
In distributed systems, such as sensor networks or groups of robots, each node uses its own hardware clock. These may start at different times and gradually drift apart due to manufacturing tolerances and temperature changes. Such desynchronisation can interfere with the coordinated operation of the devices.
Traditionally, a single source of precise time or a master node is used for synchronisation. However, this approach is not always feasible: the signal may be unavailable in underground utility networks, in densely built-up urban areas or in space, and the master node may lose connection or fail.
Researchers from St. Petersburg State University and their colleagues have proposed using the maximum logical time in the network as a reference. This takes the form of a software counter that determines the order of events. To eliminate errors caused by data transmission, the scientists adapted an algorithm widely used in machine learning. They also discovered that the efficiency of data exchange depends not only on information processing algorithms, but also on the regulation of signal transmission power.
The proposed approach makes it possible to reduce the energy consumption of devices, maintain network functionality when individual nodes fail, and ensure computational accuracy. This development can be utilised in the creation of distributed systems for the Internet of Things, industrial automation and robotics.
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